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A kind of preparation method of high pressure and high temperature water resistant water pump flexible joint rubber

A technology of water resistance and high pressure resistance, which is applied in the field of preparation of flexible joint rubber for high pressure and high temperature water resistance water pumps. It can solve the problems of high temperature resistance and achieve good heat resistance and increase flexibility.

Active Publication Date: 2022-05-17
ANHUI JINWAN PUMP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing rubber spheres are generally still made of natural rubber, nitrile rubber, and EPDM rubber using hard mold technology. However, the existing water pumps can flex the joint rubber, and the corrosion of the joint rubber material by oxygen is very serious, especially It is water leakage at the installation place of the pipe and the rubber joint, and the rubber ball has been soaked in water and air for a long time. High density, ability to withstand high pressure, good elastic deformation effect and easy processing are required. It is urgent to develop a preparation method for high-pressure, high-temperature, water-resistant, water-pump flexible joint rubber to meet the existing market demand and performance requirements.

Method used

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  • A kind of preparation method of high pressure and high temperature water resistant water pump flexible joint rubber
  • A kind of preparation method of high pressure and high temperature water resistant water pump flexible joint rubber
  • A kind of preparation method of high pressure and high temperature water resistant water pump flexible joint rubber

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Experimental program
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Effect test

Embodiment 1

[0025]The first step, according to the number of parts by weight, weigh the following raw materials: rare earth composite stabilizer 0.6 parts, thiol end group liquid nitrile rubber 10 parts, chlorokine resin 78 parts, modified liquid polysulfide rubber 15 parts, filler white garnet powder 14 parts, bistea glyceryl 0.7 parts, activator trioctyl triphenyltrile ester 41 parts, crosslinking agent manganese dioxide 0.8 parts; second step, slurry preparation: the stabilizer, chlorine resin and activated lightweight carbasic powder into the mixer, the mixer at a speed of 300 rpm stirring to 45 °C, Then to increase to 500rpm speed to the mixer to add a good modified liquid polysulfide rubber, thiol end group liquid nitrile rubber, when the modified liquid polysulfide rubber and thiol end group liquid nitrile rubber is uniformly absorbed, and then add activator, crosslinker stirring for 15min after the discharge, to get mixed slurry; the third step, rotary molding, the wire is arranged i...

Embodiment 2

[0028]The first step, according to the number of parts by weight, weigh the following raw materials: calcium and zinc composite stabilizer 0.3 parts, thiol end group liquid nitrile rubber 8 parts, chlorograin resin 76 parts, modified liquid polysulfide rubber 13 parts, carnelian powder filler 12 parts, distearate 0.5 parts, activator dioctyl phthalate 37 parts, calcium peroxide crosslinker 0.5 parts; the second step, slurry preparation: the stabilizer, chlorine resin and activated lightweight carnesilite powder mixed into the mixer, the mixer at a speed of 200 rpm stirring to 45 °C, Then to improve to 400rpm speed to the mixer to add a good modified liquid polysulfide rubber, thiol end group liquid nitrile rubber, when the modified liquid polysulfide rubber and thiol end group liquid nitrile rubber is uniformly absorbed, and then add activator, crosslinking agent stirred for 10min after the discharge, to obtain mixed slurry; the third step, rotary molding, the wire is arranged in...

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Abstract

The invention belongs to the technical field of polymer materials, in particular to a method for preparing a high-pressure-resistant, high-temperature, water-resistant water pump flexible joint rubber. The preparation method is simple, adopts rotary molding, and can be mass-produced on an assembly line. It has the advantages of high air tightness, medium resistance, weather resistance and radiation resistance. After being compounded with iron wire cloth with high strength and strong cold and heat stability, it is light in weight and good in elasticity. It can produce horizontal, axial, The angular displacement is not limited by the inconsistency of the pipeline and the non-parallel flanges. It can reduce the noise transmitted by the structure during work. It has strong vibration absorption capacity, high pressure resistance, good elasticity, large displacement, balanced pipeline deviation, absorbs vibration and reduces noise. The effect is good, the installation is convenient, and the vibration and noise of the pipeline system can be greatly reduced. It can solve the problems of interface displacement, axial expansion and non-concentricity of various pipelines. It has good sealing performance, light weight, convenient installation and maintenance, and is easy to use. Long life, the ball is puncture resistant.

Description

Technical field [0001] The present invention belongs to the field of polymer material technology, in particular a high pressure resistance high temperature water resistance water pump can be flexible joint rubber preparation method. Background [0002] The water pump can bend the rubber joint, also known as rubber shock absorbing throat, flexible rubber joint, rubber soft joint, rubber expansion joint and other names. The product is an inner and outer layer of glue, cord layer and steel wire ring composed of tube spherical rubber parts, after high temperature, high pressure vulcanization molding and then combined with metal flanges or parallel joint loose sleeves, for example, the Chinese patent CN105003765A discloses a bendable flange rubber soft joint, Chinese patent CN204554163U discloses a split flange suspension throat. Many of the above technologies have disclosed a variety of flexible rubber joints, but the flexible joint rubber is almost no report, but the purpose of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C41/04B29C41/46B29C41/20B29C41/10C08L27/06C08L75/08C08L9/02C08K13/04C08K7/06C08K3/34C08K5/103B29L31/24
CPCB29C41/04B29C41/003B29C41/46B29C41/20B29C41/10C08L27/06C08L2205/03B29L2031/24C08L75/08C08L9/02C08K13/04C08K7/06C08K3/34C08K5/103Y02P20/10
Inventor 余雷
Owner ANHUI JINWAN PUMP TECH CO LTD
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